Epidemiology Crossword Puzzle

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Across
  1. 4. Constant presence of a disease
  2. 5. Bad air theory
  3. 8. Factor directly responsible for a disease
  4. 10. Factor increasing disease occurence
  5. 11. One corner of epidemiological triangle
Down
  1. 1. Disease with a passport
  2. 2. Study of disease in populations
  3. 3. Cause of a disease
  4. 6. Disease rate
  5. 7. Disease used as an example in Unit 1
  6. 9. Death rate